Messages in this thread | | | Date | Thu, 1 Jul 2004 11:10:24 -0400 (EDT) | From | Alan Stern <> | Subject | Re: [Linux-usb-users] linux 2.6.6, bttv and usb2 data corruption & lockups & poor performance |
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On Thu, 1 Jul 2004, Duncan Sands wrote:
> > Hardware: > > Athlon XP 1600+ > > Epox 8KHA+ VIA KT266A > > BT878 TV-card (bttv card=36 tuner=1) > > Edimax Via6302 4port PCI Usb2 controller (ehci-hcd) > > Lacie P3 250GB Usb2 hard drive (usb-storage, reiserfs) > > I get hard hangs with a Bt878 + disk activity (every time it hangs, > the disk activity LED is on). But I don't have usb2. However I have > a similar processor, Athlon XP 2100+, and motherboard, VIA KT333. > I'm also using reiserfs (where an OOPS occurred in your system logs). > I also have a realtek 8139 ethernet card. We both have VIA usb 1.1 > controllers. My hangs happen with both 2.4 and 2.6 kernels. I only > get hangs if I'm using the bttv card.
Is it possible that you are exceeding the capacity of your PCI bus?
> Are you sure you plugged your device into a usb 2 port, and not a usb 1.1 port? > Also, some products claim to be usb 2 devices, when they are in fact only usb 1.1.
Be careful about your use of terms. Lots of people think USB-2.0 means the same as high speed and USB-1.1 means full speed. That's not right; it's perfectly legal for a USB-2.0 device to run only at full speed.
Alan Stern
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